I've got a switch stack of 3 WS-C3650-48PQ. Currently ports 1/1/1 and 1/1/2 are servicing 1 gig connections. Ports 2/1/1, 2/1/2, 3/1/1, & 3/1/2 are all servicing 10 gig connections. I've got a device I've patched into all the open ports and none of them will come up. Initially it was configured for a port channel for 2 connections to the device, but I've dumbed it down to just basic switchport connectivity. I've patched the device into a lab switch (C3650-48PS) with 4 1gig uplinks and it comes up. Used the same SFPs from the switch stack on the lab switch, so those are ruled out.
Does the WS-C3650-48PQ have limitations on how many active ports there can be for those 4 uplink ports? If it's got a 10gig connection can the port next to it be a 1gig connection? I'm thinking along the lines of the network modules for 3850 switches were it's either two 10gig connections or four 1gig connections and wondering if it's the same situation with these built in ports on the 3650. Thank you for any help or insight.
